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Ray Of Light [21]
3 years ago
13

Most paper does not reflect light very well because its surface is somewhat rough. T or F

Physics
2 answers:
labwork [276]3 years ago
7 0

Answer:

True

Explanation:

There are two types of reflection.

From the rough surface the diffused reflection takes place.

According to diffused reflection, when  parallel beam of light falls on a rough surface, then after reflection they bounce back in different directions, so it means they do not reflect light properly.

Sloan [31]3 years ago
3 0
I think the correct answer is true. Most paper does not reflect light very well because its surface is somewhat rough. Light only reflects to surfaces which has a smooth texture or have a uniform texture on the surface. Hope this answers the question. Have a nice day.
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A ray of light is projected into a glass tube that is surrounded by air. The glass has an index of refraction of 1.50 and air ha
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Answer:

θ = 41.8º

Explanation:

This is an internal total reflection exercise, the equation that describes this process is

         sin θ = n₂ / n₁

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4 0
3 years ago
When four quadruplets cry simultaneously, how many decibels greater is the sound intensity level than when a single one cries?
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8 0
2 years ago
A 26-g steel-jacketed bullet is fired with a velocity of 630 m/s toward a steel plate and ricochets along path CD with a velocit
Alecsey [184]

Answer:

  F = - 3.53 10⁵ N

Explanation:

This problem must be solved using the relationship between momentum and the amount of movement.

          I = F t = Δp

To find the time we use that the average speed in the contact is constant (v = 600m / s), let's use the uniform movement ratio

        v = d / t

        t = d / v

Reduce SI system

          m = 26 g ( 1 kg/1000g) = 26 10⁻³ kg

          d = 50 mm ( 1m/ 1000 mm) = 50 10⁻³ m

Let's calculate

         t = 50 10⁻³ / 600

         t = 8.33 10⁻⁵ s

With this value we use the momentum and momentum relationship

        F t = m v - m v₀

As the bullet bounces the speed sign after the crash is negative

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The negative sign indicates that the force is exerted against the bullet

5 0
3 years ago
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